Internal-combustion engine.



l-I. GUERET.

INTERNAL COMBUSTION ENGINE.

APPLII'JATIQN FILED DEC. 26| I9I3 Patented June 26, 191.7.

4 SHEETS-SHEET I.

WM A',

A. GUERET.

INTERNAL COMBUSTION ENGINE.

APPLICATION msn nac. 26. 1913.

Patented Jun@ 26, 191'?.

4 SHEETS-SHEET 2.

A. GUERET. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED DEc.26. 1913.

Patented. June 26, 1917.

4 SHEETS-SHEET 3- A. GUERET.

INTERNAL CoIvIBIIsTIoN ENGINE.

APPLICATION FILED DEC. 26.1913.

LQ 952%.. Patented June 26,1917.

4 SHEETS-SHEET 4.

Fly f4 Wai/$1 e@ L5 ecS/ ,Z P'zwey@ gow mwa @a6/67"@ 775* 4Annan GUERET, or Paars, ramon.

INTERNAL-COMBUSTION ENGINE.

Application led December 2G, 1913.

To all whom t may camera: n Be it known that I, ANDR GURET, a c1t1- zen of the French Republic, residing in Paris, in France, have invented certain new and useful Improvements 1n Internal-.Conin bustion Enginesofwhich the following 1s `a speciiication. y j

This invention relates to internal combus# tion engines, and more particularly to-those having a rotary sleeve or sleeves.

The invention comprises a, packing ring inserted between the sleeve valve in which a p`ort or ports are made and its sliding face, characterized by a protecting lip on one of the two elements (sleeve or face) surrounding the port or ports and extending to the second of the two elements, while the packing ring is formed so that it can be put 1n place.

The invention further comprises a sleeve valve controlled from the top, and further, in internal combustion engines generally, cylinders which are joined by means of ties, inlet and outlet valves which can be interchanged, a compression relief valve, and nally in a sleeve valve internal combustion engine a supplementary sleeve which 1n one position causes the engine to Work as a compression pump.

A construction of the engine will be seen in the accompanying drawings, in which- Figures 1 and 2'sh`ow respectively in vertical section at right angles to the aX1s of the crank, and in horizontal section, the internal combustion engine,

Fig. 3 shows, like Fig. 1, another internal combustion engine,

Fig. 4 shows in elevation the sleeve with which each of the'cylinders ofthe engine of Figs. 1 and 2 is provided.

Fig. 5. shows the sleeve wlth the packing part removed.

Figs. 6 and 7 show, respectively in vertical section on the line 6-6 of Fig. 2, and in vertical section on the line 7- 7 of Fig. 2, the sleeve, as well as the adjoinlng parts of the engine.

Figs. 8 and 9 show in the same Way respectively as Fig. 4 and Fig. 5, the sleeve with which the engine, or each of the cylinders of the engineof Fig. 3 is or are provided.

Figs. 10-13 show sections of the cylinder and illustrate the sleeves in each of the positions occupied during each of the four strokes thereof.

Specification of Letters Patent.

Patented June 26, 191'?.

seriai No. 808,873.

' Fig. 14 shows, in the same way as Figs.

l and 3, another internal combustion engine according to this invention.

A cylinder a is provided with a pair of ports, an admission port b, and an 'exhaust port c, in which cylinder a sleeve d with a port e is arranged so that the said sleeve can turn about its axis. The port e is thus brought to coincide successively with one and with the other of the said ports b and c.

In order to pack. the joint between the cylinder or cylinders a and the sleeve d the sleeve Z is provided with such a recess that it is on the same levelas the port e of the same. The said port is provided with a lip e1 which, as soon as' the sleeve is in place in the cylinder, projects up to the inner wall of the latter. In the recess is mounted a ring provided with such an opening that it frames the lip e1 so that the lip protects the edgesof the opening. This ring is either as shown in Figs. 4 7 constituted by three superposed and joined elementary segments, the first and the third of which are made and cut in the usual manner, and the second cut out to lt between them, of a height equal to or slightly greater than the height of the lip e1, leaving a small clearance between the 'edges of its opening and the lateral edges of that, when the sleeve rotates, they pull on the ring to prevent it from scraping the cylinder. It will be seen that the ends of the ring being protected from any direct action of hot gases, wear out much more slowly, and either no leak is produced during the passage of the gases through the port e, or, if there is such a leak the said gases, owing to the expansion which they have to undergo in passing the lip e1, do not press the ring against the cylinder much more heavily than it is already pressed by its own elasticity; and finally, there is no wear either of the ring or of the sleeve carrlying it, or of the cylinder itself.

Tie engine has also a compression relief valve f, which is mounted so that it is on the same level as the porte, and consequently can be brought into communication with the interior of the cylinder through the said port.. and also the said port uncovers it a certain time before the correspondwith the exhaust port c and also the posif ing piston arrives at the end of the compression stroke. Owin to this a charge remains in the cylin er at the end of each compression when .the compression reliefvalve is open and itis possible, if the di-' when it occupies the normal position, as

shown in Fig. 2, the said ports coincide respectively with the admission port b and tion of the said ports Ab and c being chosen for the urpose, it is possible to stop completely, by giving a suitable angular movement to the said supplementary sleeve, the coincidence of the ports, as shown in Figs. 10-13. When the angular ymovement has been produced, there takes place at each' down stroke of the piston (in spite of the engine being a four-stroke one), a suction of air, for which reason, the supplementary sleeve and the cylinder are provided respectively with a port e and a port a0 such that they coi'ncide when the said angular movement has been made, and that then they enable the piston to draw in air during the stroke corresponding in normal working, to the expansion stroke. Also, the position of the ports b and o is such, that when the coincidence between the ports'co and a0 takes place, there is also a coincidence between the ports 0 and b. Again, the conduit g for the admission of the explosive lmixture is provided with a valve g which,

when it is as shown-in full lines in Fig. 2, does not act, but on the contrary, when it is in the position shown in the Fig. 2 in dotted lines, opens directly to the atmosphere that portion of the conduit which'is situated below the valve. Finally, to the valve is connected a device for operating the supplementary sleeve d", in such a manner as to obtain simultaneous control of these two parts. Owing to this arrangement and as shown in the corresponding figures, the result desired is attained.

The valves of the engine are symmetrical which is necessary to make the engine reverse and the admission and exhaust conduits are combined, both with each other and with valves for the purpose, so as to enable the respective connections of the,

said conduits and of the ports at which they terminate, to be reversed, by acting on the said valves. To this end are used, as shown in Fig. 2, two similar conduits g1 and g2 terminating respectively at the port and at the port c of the cylinder or cylinders a and branched at their origin on two joint branches h1 and k2, which 1n their turn, are branched at their center, on a conduit g connected to the carbureter, and on a conduit i connected to the atmosphere, and also provided with slide valves jl and4 i2 adapted to act by means of a rocking lever j and to reverse at will. This rocking lever j, also acts on they system for regulating the advance and the retardation' of ignition.

The sleeves are not controlled from below as done hitherto and as shown in Fig. 14, but from the top, as shown in Fig. 1, that is to say, by means of a cover or spider 7c secured to the upper part of the sleeve or sleeves and a pin Z secured to the said spider with a pinion m secured at the top of the said pin. Or the sleeves may be controlled as shown in lFig. 3, by means of an upper extension of The cylinders are connected together byl I means of long ties such as shown at n in Fig. 2, .so that the said cylinders are cast with one and the sam'e pattern which is of advantage when the foregoing arrangements are adopted.

The detailed arrangements of the engine are such as are shown in the drawings and require no further explanation.

The invention is not limited to those features more particularly described, but comprises any modications within the scope of the claims. J

What I claim as my 'invention and desire to secure'by Letters Patent is 1. An internal combustion engine comprising a ixed cylindrical element having a port, a rotarycylindrical element provided with a port to register with the port ofthe iixed cylindrical element, and means for preventing leaka e of fluid between said elements embodying a projecting lip surrounding the port in one of said elements through which port the gases from 'the combustion chamber of the cylinder pass in order to escape between said elements, said lip being adapted to contact with the wall of the other element, and a split ring having its ends cut out to surround the said lip with a certain lateral clearance and having` its 'oint Isubstantially in line with the axis o Vthe port surrounded by said lip.

2. An internal combustion engine comprising a fixed cylindrical element having a port, a-rotary cylindr1cal'element provided izo with a port to register with the port of the I fixed cylindrical element, said elements bemeinen i the outer element, and a split ring having its ends cut out to surround the said lip with a certain lateral clearance and having its joint leo substantially in Vline with the axis of the port surrrounded bysaid lip, the Width. of the ring being greater thanthe Width of said port and of the upper and lower portions of the lip, each end of the rirg being provided With a recess of a Width equal to the Width of the port and of the upper and lower portions of the lip, and of a depth substantially equal to half of the Width of said port and of the lateral portions of the. lip.

3. An internal combustion engine comprising a fixed cylindrical element having a port, a rotary cylindrical element vcontaining a combustion chamber and provided with a port to register with the port of the fixed cylindrical element, and means for preventing leakage of fluid between said elements 'embodying a projecting lip surrounding the port of the rotary element and adapted to contact with the Wall of the coperating fixed element, the rotary element also having a circumferential groove, and an annular packing tted in said groove and surrounding said lip, the packing having a split portion adjacent to said lip.

l. The combination with' relatively rotatable inner and outer cylindrical elements having portsadapted to register, the inner element containing a combustion chamber, and having a circumferential groove in its Wall which faces the adjacent Wall of the other element and also having a lip projecting from said groove and surrounding the respective port, said lip being adapted to cooperate With the adjacent wall of the coperating member, and a circular packing contained in said groove and surrounding said lip, the packing having a split portion With the ends thereof adjacent to said lip.

5. ln an internal combustion engine, the combination of a cylinder, a piston reciprocable therein, a compression relief cock nesses.

ANDR GURET.

Witnesses:

Hanson (Conn, Pfg-on Banen 

